#FDFF51#FDFF51

#FDFF51 is a very light, vivid yellow. Relative luminance 0.930; OKLCH L 96.9% C 0.186 H 110.1°. Best body text is #000000 at 19.60:1 contrast (WCAG AA passes).

Color values

HEX	#FDFF51
RGB	rgb(253, 255, 81)
HSL	hsl(61, 100%, 66%)
HSV	hsv(61, 68%, 100%)
CMYK	cmyk(0.8%, 0%, 68.2%, 0%)
CIE-LAB	lab(97.23, -20.42, 78.51)
CIE-LCH	lch(97.23, 81.12, 104.58°)
OKLab	oklab(96.91% -0.0639 0.1748)
OKLCH	oklch(96.91% 0.186 110.1)
XYZ	xyz(77.7559, 92.9989, 21.6376)
Luminance	0.9300 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FDFF51 #5351FF

analogous

#FFAA51 #FDFF51 #A6FF51

triadic

#FDFF51 #51FDFF #FF51FD

tetradic

#FDFF51 #51FFAA #5351FF #FF51A6

square

#FDFF51 #51FFAA #5351FF #FF51A6

split-complementary

#FDFF51 #51A6FF #AA51FF

monochromatic

#D3D600 #FCFF14 #FDFF51 #FEFF8E #FEFFCB

Accessibility & contrast

On white

1.07

#FDFF51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.60

#FDFF51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FDFF51

19.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FDFF51	#FFFFFF	#000000	##000000
##FDFF51	1.00	1.07	19.60	19.60
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.60	21.00	1.00	1.00
##000000	19.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF434

Deuteranopia (green-blind)

#FFF95E

Tritanopia (blue-blind)

#FFEFDD

Achromatopsia (no color)

#F7F7F7

Design tokens & code

CSS

--color: #fdff51;
/* rgb */ color: rgb(253, 255, 81);
/* oklch */ color: oklch(96.9% 0.186 110.1);

Tailwind

colors: {
  custom: {
    50: '#ffff8c',
    500: '#fdff51',
    950: '#000000',
  },
}

SCSS

$custom: #fdff51;
$custom-light: #ffff8c;
$custom-dark: #000000;

JSON

{
  "hex": "#fdff51",
  "rgb": {
    "r": 253,
    "g": 255,
    "b": 81
  },
  "hsl": {
    "h": 60.69,
    "s": 100,
    "l": 65.882
  },
  "oklch": {
    "l": 0.96908,
    "c": 0.18609,
    "h": 110.1
  },
  "luminance": 0.92997
}

Semantic roles & 50–950 ramp

primary

#FDFF51

secondary

#2725D0

accent

#00E603

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#19170D

muted

#87857F

Preview Lab

Preview with #FDFF51

Body copy rendered with the generated semantic roles for this colour.

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